The harmful effects of soil pollution may come from direct contact with polluted soil or from contact with other resources, such as water or food which has been grown on or come in direct contact with the polluted soil.
A reason for your arm or hand falling asleep at night could be because of having a stroke. A stroke is a life-threatening emergency that happens when there is a disruption in the flow of blood to your brain. This can cause paralysis, loss of consciousness, numbness on one side of the body, and impaired speech.
wikiHow to Get Rid of an Asleep Foot. Reduced blood supply (poor circulation) is probably the most common reason why your feet fall asleep, although temporary nerve compression in the ankle or even near the knee can also lead to that pins and needles feeling.